Ps.exe Renamed SysInternals Tool

Description

Detects renamed SysInternals tool execution with a binary named ps.exe as used by Dragonfly APT group and documented in TA17-293A report

Query · sigma

selection:
  CommandLine|contains|all:
  - ps.exe -accepteula
  - -s cmd /c netstat
condition: selection

Known false positives

  • Renamed SysInternals tool
Raw source Ps.exe Renamed SysInternals Tool · Sigma
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Published by SigmaHQ/sigma ↗, licensed under Detection Rule License 1.1 ↗. Reproduced here unmodified. 
title: Ps.exe Renamed SysInternals Tool
id: 18da1007-3f26-470f-875d-f77faf1cab31
status: test
description: Detects renamed SysInternals tool execution with a binary named ps.exe as used by Dragonfly APT group and documented in TA17-293A report
references:
    - https://www.us-cert.gov/ncas/alerts/TA17-293A
author: Florian Roth (Nextron Systems)
date: 2017-10-22
modified: 2023-05-02
tags:
    - attack.stealth
    - attack.g0035
    - attack.t1036.003
    - car.2013-05-009
    - detection.emerging-threats
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        CommandLine|contains|all:
            - 'ps.exe -accepteula'
            - '-s cmd /c netstat'
    condition: selection
falsepositives:
    - Renamed SysInternals tool
level: high

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